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Scroll spring size measuring tool

A scroll spring and measuring tool technology, applied in the field of scroll spring size measurement tools, can solve the problem of inability to accurately measure whether the outer size of the spring meets the design requirements, and achieve the effect of simple structure design and improved efficiency

Pending Publication Date: 2019-09-20
HARBIN DONGAN ENGINE GRP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] like figure 1 As shown, the spring is an Archimedes helix with a relatively complicated shape, and its external dimensions can only be measured by scanning with a measuring instrument. However, since the spring is small in size and belongs to an elastic element, when the probe of the measuring instrument touches the spring After that, the spring will produce elastic deformation immediately, and it is impossible to accurately measure whether the outer dimension of the spring meets the design requirements.

Method used

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Embodiment Construction

[0012] Such as figure 1 As shown, the springs described in this patent application are scroll springs, which generally have small thickness and rigidity and are prone to deformation. It is more difficult to measure various indicators such as radius and length.

[0013] Such as figure 2 As shown, in order to accurately measure the various indexes of the scroll spring, the idea of ​​structural model screening was tried. On the tool, according to the cross-section of the vortex spring to be screened or measured, a spiral groove consistent with the shape of the cross-section is processed. The inner ring of the spiral groove and the outline formed by the inner end surface of the scroll spring leaf are the inner ring, which is processed according to the minimum design size. The outer ring of the spiral groove, the outline formed by the outer end surface of the scroll spring leaf is the outer ring, which is processed according to the maximum design size. Thereby, a helical groov...

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Abstract

The invention relates to a spring measuring tool, and particularly relates to a scroll spring size measuring tool. The tool is machined with a spiral groove according to the cross section of a scroll spring. The spiral groove runs through the upper and lower surfaces of the tool. The inner ring size of the spiral groove is processed according to the minimum value of the design size of the spiral spring. The outer ring size of the spiral groove is processed according to the maximum value of the design size of the spiral spring. According to the technical scheme, the thickness of a scroll spring steel sheet, the spiral radius, the total length of the spring steel sheet and other parameters are measured through a simple structural design; and the efficiency is greatly improved from the viewpoint of judging whether a part meets dimensional design requirements.

Description

technical field [0001] The invention relates to a spring measuring tool, in particular to a scroll spring dimension measuring tool. Background technique [0002] At present, the conventional size measurement tools are mostly micrometers, calipers, or three-coordinate measuring instruments, etc., but they all need to exert a certain pressure on the parts, so that the probe and the parts are closely matched to ensure accurate size measurement. However, for scroll springs with smaller spring steel thickness and less elastic force, such as figure 1 As shown, the above measurement methods are not applicable. [0003] Such as figure 1 As shown, the spring is an Archimedes helix with a complicated shape, and its external dimensions can only be measured by scanning with a measuring instrument. However, since the spring is small in size and belongs to an elastic element, when the probe of the measuring instrument touches the spring After that, the spring will produce elastic defor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B5/00G01B5/02G01B5/06G01B5/08
CPCG01B5/00G01B5/02G01B5/06G01B5/08
Inventor 王洪翠白兆宏董晨陈铁娟苏云龙吴昊王龙献
Owner HARBIN DONGAN ENGINE GRP